Estimation of common-mode EMI caused by a signal line in the vicinity of ground edge on a PCB

Tetshushi Watanabe; Osami Wada; Yoshitaka Toyota; Ryuji Koga

Estimation of common-mode EMI caused by a signal line in the vicinity of ground edge on a PCB

Tetshushi Watanabe, Osami Wada, Yoshitaka Toyota, Ryuji Koga

Research output: Contribution to journal › Conference article › peer-review

Abstract

The authors have developed an estimation method of common mode radiation from a PCB. A parameter named 'current division factor' explains a generation mechanism of the common mode. Rigorous analysis, instead of rough approximation, is required to calculate the factor for an asymmetric structure. A 2-dimentional static electric field analysis by the boundary element method (BEM) is applied to this calculation, which requires less time than 3-dimentional simulations. EMI increases when the signal line comes close to the edge of ground pattern. The effect is evaluated with the simulation of the factor. The estimation agrees well with measurement within 1 dB.

Original language	English
Pages (from-to)	113-118
Number of pages	6
Journal	IEEE International Symposium on Electromagnetic Compatibility
Volume	1
Publication status	Published - Jan 1 2002
Event	2002 IEEE International Symposium on Electromagnetic Compatibility - Minneapolis, MN, United States Duration: Aug 19 2002 → Aug 23 2002

Keywords

Boundary element method
Common mode
Current division factor
EMI
Ground plane
Printed circuit board

ASJC Scopus subject areas

Condensed Matter Physics
Electrical and Electronic Engineering

Cite this

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title = "Estimation of common-mode EMI caused by a signal line in the vicinity of ground edge on a PCB",

abstract = "The authors have developed an estimation method of common mode radiation from a PCB. A parameter named 'current division factor' explains a generation mechanism of the common mode. Rigorous analysis, instead of rough approximation, is required to calculate the factor for an asymmetric structure. A 2-dimentional static electric field analysis by the boundary element method (BEM) is applied to this calculation, which requires less time than 3-dimentional simulations. EMI increases when the signal line comes close to the edge of ground pattern. The effect is evaluated with the simulation of the factor. The estimation agrees well with measurement within 1 dB.",

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T1 - Estimation of common-mode EMI caused by a signal line in the vicinity of ground edge on a PCB

AU - Watanabe, Tetshushi

AU - Wada, Osami

AU - Toyota, Yoshitaka

AU - Koga, Ryuji

PY - 2002/1/1

Y1 - 2002/1/1

N2 - The authors have developed an estimation method of common mode radiation from a PCB. A parameter named 'current division factor' explains a generation mechanism of the common mode. Rigorous analysis, instead of rough approximation, is required to calculate the factor for an asymmetric structure. A 2-dimentional static electric field analysis by the boundary element method (BEM) is applied to this calculation, which requires less time than 3-dimentional simulations. EMI increases when the signal line comes close to the edge of ground pattern. The effect is evaluated with the simulation of the factor. The estimation agrees well with measurement within 1 dB.

AB - The authors have developed an estimation method of common mode radiation from a PCB. A parameter named 'current division factor' explains a generation mechanism of the common mode. Rigorous analysis, instead of rough approximation, is required to calculate the factor for an asymmetric structure. A 2-dimentional static electric field analysis by the boundary element method (BEM) is applied to this calculation, which requires less time than 3-dimentional simulations. EMI increases when the signal line comes close to the edge of ground pattern. The effect is evaluated with the simulation of the factor. The estimation agrees well with measurement within 1 dB.

KW - Boundary element method

KW - Common mode

KW - Current division factor

KW - EMI

KW - Ground plane

KW - Printed circuit board

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AN - SCOPUS:0036382162

SN - 0190-1494

VL - 1

SP - 113

EP - 118

JO - IEEE International Symposium on Electromagnetic Compatibility

JF - IEEE International Symposium on Electromagnetic Compatibility

T2 - 2002 IEEE International Symposium on Electromagnetic Compatibility

Y2 - 19 August 2002 through 23 August 2002

ER -

Estimation of common-mode EMI caused by a signal line in the vicinity of ground edge on a PCB

Abstract

Keywords

ASJC Scopus subject areas

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